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Installation Guide

ManualsBrandsBig Ass Fans ManualsKitchen4900 14 ft. Silver and Yellow ShopFan
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BIG ASS FAN 4900
Operating the Fan
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speed. Moving at a low speed means less energy used for operation, translating into more energy savings year-round. Follow the
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To ensure proper fan rotation:
1. Turn on the fan.
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3. If the fan is not rotating counterclockwise, reverse the direction of rotation. See the previous page for instructions on changing the
direction of rotation.
Heating season
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the fan should be operated continuously during the heating season and should not be operated in reverse (clockwise). Big Ass Fans are
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Adjust the fan speed to the appropriate starting fan speed listed in the table below.
Floor-to-ceiling height (ft) Starting fan speed Display %
<40 15 Hz 20–30%
 20 Hz 30–40%
Stand directly below the tips of the airfoils with hand outstretched. If you feel a draft, slightly decrease the fan speed (0.5). Repeat until
the draft is no longer noticeable.
Cooling season
The cooling effect created by the breeze from Big Ass Fan 4900 fans keeps occupants comfortable with the thermostat at a higher
setting. During the cooling season, every degree higher that the thermostat is reset reduces the energy consumed by the air conditioner
by 1.5–2%. To minimize energy usage during the cooling season, operate the fan only when building occupants are present.
Adjust the fan speed to the appropriate starting fan speed listed in the table below.
Floor-to-ceiling height (ft) Starting fan speed Display %
<40 25 Hz 40–50%
 40 Hz 60–70%
Increase the speed of the fan until desired air speed or maximum fan speed is reached. In air conditioned facilities, increase the
thermostat setting by 2 to 7°F to save energy.